Home / 108,361,961.40-162,808,362.90-81,488,105.40

Finding the Fourth Proportional to 108,361,961.40, 162,808,362.90 and 81,488,105.40

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Solution

The fourth proportional to 108,361,961.40, 162,808,362.90 and 81,488,105.40 is: 122,431,754.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,361,961.40 : 162,808,362.90 = 81,488,105.40 : x
  2. Step 2: Convert to fraction form
    108,361,961.40/162,808,362.90 = 81,488,105.40/x
  3. Step 3: Cross multiply
    108,361,961.40x = 162,808,362.90 × 81,488,105.40
  4. Step 4: Simplify right side
    108,361,961.40x = 13,266,945,035,996,652
  5. Step 5: Solve for x
    x = 13,266,945,035,996,652/108,361,961.40
  6. Step 6: Final answer
    x = 122,431,754.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.